I'd like to give someone a gift (who speaks German, and is also a fountain pen user) and include a quote from S.B.R.E. Brown (podcast here) written down with my own calligraphy. The problem is that I'm just starting to learn the language, and I'd like some help in making it more fluent and original. Here's the quote, the only rule said by the fictional Saint Nibious:

Use a fountain pen and all is well.
Use a ballpoint pen and thou shalt go to hell.

As you can see, the rhyme is gone. Not sure if it can be adapted to contain one again, anyway, that's not the big problem. What I'd like to have in this is the old/archaic style, given by "shalt" and "thou" in the original. I'm not sure also if Füller is enough or should I use Füllfederhalter.

The last thing is the Saint's name. Any ideas?

Update

After these constructive comments, I would certainly remove Du and yes, the Imperativ might be better suited. So it becomes:

As for the rhyme, I was thinking about modifying the first part to end with a verb to, in the sense of "you'll do well", "well/good you do". Here's a probably incorrect guess, but maybe a starting point:

Why do you switch between "Sie" and "Du"? I don't know how old "thou" is, but for "Du": Ahd. thū (8. Jh.), mhd. dū. And sollen: ahd. scolan, sculan (8. Jh.), mhd. scholn, schuln. (Source DWDS). For the rhyme... try OK instead of gut and you're a bit closer. (I'm not sure about standard pronunciation, but at least in my region we would say "okee"; if you know drop the 2nd e in gehen, i.e. geh'n, you're very very close)
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Em1Sep 26 '12 at 20:50

I would use the Imperativ and leave out the pronouns like this: Verwende einen Füller und [...], Verwende einen Kügelschreiber und [...]. Besides that, indeed a rhyme would be much better.
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AhmadSep 26 '12 at 23:42

@Em1 Thanks for your help. Regarding Du, well I was trying to match the original but yes, it might be too informal. Thanks for the rhyme tips and please consider placing an answer with this information. I've updated the question with the latest ideas.
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sidyllSep 27 '12 at 3:07

@sidyll No, no... Keep "Du", but consistently. And follow the suggestion made by Ahmad, then you have a nice German sentence. However, you don't have any old-style any more. For the rhyme, I think Takkat's idea is quite nice, though I would revise both parts a bit.
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Em1Sep 27 '12 at 6:53

Even though it seems to change the meaning a bit (or maybe I just didn't get it right) this presents no problem, and I really like your second sentence. While I up voted, I wish selecting more than one answer as correct was possible. Out of virtual life, I didn't yet decide which version to use! :-)
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sidyllSep 28 '12 at 2:10